They send *civilians* into the future to fight and arm them with machine and hand guns. The creatures they're fighting are practically impervious to machine guns and these civilians have *not* been trained to use the weapons so they're, essentially, fodder/distractions. I kept wondering just why they didn't use better weaponry. You know, mortars, armor piercing shells, flame throwers, explosive rounds, etc.

These aliens are only vulnerable in the throat and stomach areas yet our intrepid hero manages to take one down by hand.

The people who get drafted/accepted into the future war ranks have one thing in common. None of them will survive to the years the war begins and some are told *when* they'll die *if* they return (there's a 70% mortality rate). Your tenure is 7 days as that's how long it is between alien attacks so they try to take out as many as possible during the "lull" between alien emergence. If you still show signs of life at the end of 7 days you're automatically pulled back no matter where you are or what you're doing. This sets up the dramatic scene where our hero is pulled back while trying to save his daughter who's falling into a hoard of attacking aliens.

Sometimes people can outrun the aliens - if it's convenient to the plot.

The serum that has the potential to kill the queens (yeah... like an ant's nest) is developed by our hero's daughter (who's all grown up with advanced degrees and pretty much in charge of the final operation) and given to dad to take back and get into the aliens to kill them *before* the war begins. This creates a paradox - a huge one. If he's successful then there's no future war that can send back the serum to kill the aliens to stop the war in the future.

She tells him all about his past self - after he returns from the war - and how he eventually dies when she's 16 (she was 8 when he jumped into the future). More paradox.

Our hero's somewhat estranged dad, an anti-government type who also has advanced degrees, helps him deliver the serum as no one in the present time believes what he's saying. This in spite of growing dissension in the present and the inevitable looting/etc. due to everyone believing they truly have no future. After all, people came from the future to tell them this.

Of course there's the precocious kid, a student of our hero, who's a volcano expert and can tell them *why* there's volcanic dust under alien's claws when they emerged from a remote area of Russia.